Home / 39,037.17-53,871.33-21,132.33

Finding the Fourth Proportional to 39,037.17, 53,871.33 and 21,132.33

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Solution

The fourth proportional to 39,037.17, 53,871.33 and 21,132.33 is: 29,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.17 : 53,871.33 = 21,132.33 : x
  2. Step 2: Convert to fraction form
    39,037.17/53,871.33 = 21,132.33/x
  3. Step 3: Cross multiply
    39,037.17x = 53,871.33 × 21,132.33
  4. Step 4: Simplify right side
    39,037.17x = 1,138,426,723.10
  5. Step 5: Solve for x
    x = 1,138,426,723.10/39,037.17
  6. Step 6: Final answer
    x = 29,162.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.